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Post by malkchild on Oct 25, 2012 12:38:48 GMT -5
Hey all. I just replaced the piston and rings in my CPI Aragon with the standard 50cc kit, but now the bike will hardly start, and when it does it seems to die suddenly with hardly any torque. I bled the oil pump, and checked the cylinder for nicks and scratches. Please help!
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Post by teddy554 on Oct 25, 2012 15:47:31 GMT -5
Are you sure you have the airbox on right with no air leaks and with the arrow on the piston pointing down and how close were the spec of the piston with each other
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Post by malkchild on Oct 25, 2012 19:42:57 GMT -5
Piston matched specs, airbox is on good and tight. Feels like the engine might be soft seizing. Maybe the oil pump is going? Is it okay to premix with these engines?
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Post by dude on Oct 25, 2012 23:32:51 GMT -5
You can premix BUT you must up jet. Have you checked your reeds or for air leaks?
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Post by Fox on Oct 26, 2012 23:01:25 GMT -5
I premix and put over 6000 miles on mine with no up-jet. Eventually the wrist bearing failed but that wasn't because of the mix, it was because it wore out and out of laziness and procrastination I didn't replace the bearing when it started making noise. I use 3.5-4oz. per gallon of good quality Lucas semi-stynthetic.
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